body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.button-container {
    display: flex;
    justify-content: space-between;
}

.button-container button {
    flex: 1; /* 让按钮均匀分布 */
    margin: 5px; /* 添加一些间距，使按钮之间不会太挤 */
}


.container, .login-container {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    padding: 20px;
    text-align: center;
    max-width: 400px;
    width: 90%;
}

h2 {
    margin-bottom: 20px;
    color: #333;
}

form, .login-form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

form input[type="text"],
form input[type="password"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 3px;
    font-size: 16px;
}

form button {
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 3px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

form button:hover {
    background-color: #0056b3;
}

.error-message {
    color: red;
    margin-top: 10px;
}

/* 添加以下样式以匹配下载文件的HTML */
a {
    text-decoration: none;
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 3px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
    display: inline-block;
    margin-top: 10px;
}

a:hover {
    background-color: #0056b3;
}
